#!/usr/bin/env python
# -*- coding:utf-8 -*-

name = input("请输入用户名:")
password = input("请输入密码:")

print("开始")

if name == "alex" and password == "123":
    print("登录成功")
    print("登录成功")
    print("登录成功")
    print("登录成功")
    print("登录成功")
    print("登录成功")
else:
    print("用户名或密码错误")
    print("用户名或密码错误")

print("结束")